Roy the Zebra
Website: http://roythezebra.com/reading-games/long-vowel-phonemes-oa.html
This reviews the "oa" vowel digraph that makes the "o" sound. You place the "oa" in each word and as you get the words correct you are helping the zebra get ready for bed.
This is great for younger children you cannot get the answers wrong and it reviews the "oa" words.

Drag the Picture
Website: http://www.sadlier-oxford.com/phonics/grade_k_1/long_vowel_grk1_nav.htm
Dragging all words with a long vowel sounds. This website allows you to review all vowels.
This activity is great practice for early readers. It has pictures along with the words. It will also not allow you to get an answer wrong.

Spell the Word
Website: http://www.softschools.com/language_arts/phonics/games/magic_e_sounds.jsp
For this activity you see a picture and say the word to yourself. Then you place the vowel that will go in the space to complete the word. This is good for 1st graders. After you have chosen the vowel to spell the word you can check to see if you spelled it correctly.

Long "O" Worksheet
Website: http://www.free-phonics-worksheets.com/images/phonics_worksheet_v1-39.pdf
external image phonics_worksheet_v1-39

"OO" Making the Long "U" Sound
Website: http://www.free-phonics-worksheets.com/html/phonics_worksheet_v2-16.html
external image phonics_worksheet_v2-16

Build a Word Worksheet
Website: http://www.funfonix.com/book3/build_600.gif
external image build_600.gif